Effective Temperature Determination of Eclipsing Binaries

Details Effective Temperature Determination of Eclipsing Binaries Effective Temperature Determination of Eclipsing Binaries

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..409j&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 409-412

Computer Science

Scientific paper

Effective temperatures and distances of eclipsing binaries computed through Hipparcos trigonometric parallaxes were compared with the photometric determinations. The former were based on the radius, the apparent visual magnitude and the bolometric correction of the star, whereas the latter were obtained from standard calibrations using Stroemgren or Johnson colour indices. The study was performed for a sample of 15 detached eclipsing binaries that can be regarded as single stars, and 9 RS CVn-type binaries and 11 Algol-type binaries, with a relative error in the Hipparcos parallax less than 20 per cent. The stars in the sample came from 1982 proposal number 177 and 1992 internal proposal number 84. The comparison of effective temperatures for the detached systems was used to test the standard photometric calibrations applied to isolated stars and the validity of the same calibrations for stars with some level of interaction.

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